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Shortnose Gar

Lepisosteus oculatus

Also known as: spotted gar, Spotted Gar

A living fossil built for ambush, not the average home aquarium.

Shortnose Gar
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CC BY-SA 3.0

About

The spotted gar (Lepisosteus oculatus) is one of those fish that makes you stop and stare. It looks like it belongs in a prehistoric river, and in many ways it does. Gars are among the oldest lineages of ray-finned fish still swimming today, and this species carries that ancient quality in every detail: the long, beak-like jaws packed with teeth, the armored ganoid scales, and the torpedo body built for explosive, short-range strikes at prey. In the wild it inhabits calm, clear backwaters, oxbow lakes, and slow lowland rivers across a broad swath of central and eastern North America. One genuinely remarkable adaptation is its ability to breathe atmospheric air using a modified, vascularized swim bladder connected to the throat. Handy in the warm, oxygen-depleted waters it often calls home. In the aquarium world, this species sits firmly in the advanced-to-specialist category, and honestly most sources suggest it has no real place in a home setup given its eventual size and multi-decade lifespan. Juveniles do surface in the trade occasionally, but this is really a fish for public aquaria with the space and resources to do it properly. If tankmates are considered at all, only robust fish of comparable size should even be attempted.

Frequently asked questions

How big does the Shortnose Gar get?
The Shortnose Gar reaches about 39.5–49" as an adult.
What size tank does the Shortnose Gar need?
A minimum of 350 gallons is recommended for the Shortnose Gar.
What water parameters does the Shortnose Gar need?
The Shortnose Gar does best with a temperature of 54–68Β°F, a pH of 6–8, hardness around 5–20 dGH.
Is the Shortnose Gar aggressive?
The Shortnose Gar is aggressive and is best kept alone or with robust tankmates that can hold their own.
What does the Shortnose Gar eat?
The Shortnose Gar is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
How long does the Shortnose Gar live?
With good care, the Shortnose Gar typically lives 10-18 years.